Tread or railway horse-power



- 2 Sheets--Sheet 1. P. K. DEDERIGK.

Tread 01* Railway Horse Power.

No. 231,656. Patented Aug. 31,1880.

Erans,

2 Sheiets-Sheet 2.- P. K. DEDERIGK.

Tre ad or Railway Horse Power.

No. 231,656. Patented Aug. 31,1880.-

I, gziwehioi; A WWMW- flJK i N, PETERS. PHOTO-LITHDGRAFHER. WASHINGTON.D. C. h

- of Albany, county of Albany, State of New 1 the horse-powers for whichLetters Patent full lines, Fig. 3.

rectly.

manner of governing and regulating the mo-- scribed in the patentsreferred to, need not be NITED STATES PATENT OFFIGE.

, PETER K. DEDERIGK, OF ALBANY, NEW YORK.

TREAD OR RAILWAY HORSE-POWER.

SPECIFICATION forming part of Letters Patent No. 231,656, dated August31, 1880.

Application filed January 9, 188d.

To all whom it may concern:

Be it known that I, PETER. K. DEDERICK,

York, have invented certain Improvements in Tread or RailwayHorse-Powers, of which the following is a specification.

My invention consists in improvements on were granted me May 13, 1879,No. 215,214 and No. 215,213, and relates to the construction of thepower so as to adapt it to four horses working two abreast, and also tothe tion of the power.

Figure 1 is a perspective view of my improved power. Fig. 2 is asectional view representing my improved governor or regulator. Fig. 3 isalso a sectional view representing safety appliance on the power-shaft.

Similar letters represent similar parts.

A represents the frame or support of the power, which may be constructedin any suitable manner.

B represents the endless platform on which the horses walk, which,having been fully departicularlydescribed herein. Said shaft isrepresented by dotted lines in Fig. 1 and in (l is the powershaft, whichpasses through the endless platform and connects to it di- Dis a secondpower-shaft, geared to the first shaft to increase the motion, and theymay be used either singly or together, constituting single and doublegear in a manner usual in this class of powers.

E is the band-wheel located on and secured to the power-shaft D.

His a collar secured on the end of the powershaft.

I is a spool loosely mounted on the powershaft and provided with afriction-flange, K.

L is a corresponding friction-flange, also mounted on the power-shaft,which is provided with a feather, so that it must turn with the shaft,but may move on the shaft in the direction of its length.

M Mare toggles, the one end of which is pivoted to the plate L and theother end at,

. wheel.

to, or near the band wheel hub.

N N are rods pivoted to the joint of the toggles, and extending outwardand passing loosely into sockets O 0, and provided with springs P P tobear the rods and toggles inward.

R B are balls or weights located on the rods N and secured with nuts,which may be adjusted outward or inward, as desired, to give, more orless force.

S is a brake-lever, which may be of any ordinary form, pivoted at oneend and provided with a shoe or friction-surface, T, which may bebrought to bear on the face of the band- A spring of wire, plate, orrubber, as a, may be used to hold the brake off when not re-. quired tobear. A strap or cord, V, connects the spool I to the brake-lever S, orto the stud W, secured to the lever. A rack in place of the strap andpinion in place of the spool would have the same effect, but would bemore expensive.

X is a brake-slide of ordinary pattern, provided with a rollerto act asa tightener on the belt, and a bracket or shoulder to bear against thelever S, and pivoted at the end, as shown, so that when the belt is castthe slide-bar will .fall and apply the brake. This is, however, a nopart of the governor, and is unnecessary 80 unless, from some cause, thegovernor fails to act.

2 represents a friction-wheel applied to the power-shaft O, with astrap, 3, adapted to bear on its surface, and which is operated" by thelever 4. This is of use only as a safety appliance when the gearingconnecting with the band-wheel shaft becomes detached or broken, andwhen without this safety appliance there is nothing to stop the power,and in such cases usually runs the horses 0E back and frequently injuresthem severely.

Y-is a cross-bar passing between the horses across the power, so thattwo horses are in frontand two back of it, and to this cross-bar thelength partitions may be secured. This crossbar is essential to preventthe horses from walking up too far or falling back, and thus becomingexcited and injuring each other or crowding each other ofi' endwise. A.strong plank might be passed the entire length of the power between bothpairs of horses and se cured to the forward and rear cross-bars, whichwould take the place of the two length-partition strips, and then thecross-partition might be secured to this length-partition instead of tothe sides of the power with the same effect, as shown but thecrosscenter partition is indispensable for safety.

In operation the frame is elevated at the forward end to secure therequired power, and then the horses are led on the power one at a time,and the two forward horses first. The cross-partition Yis now securedacross the center of the power and the upper length-partition alsosecured in place. The two rear horses are now led on and secured bymeans of the rear bar and partition, which is secured to the crossbar Yat one end. The band may now be applied to the work and the powerstarted. The governor-weights R R having'beenpreviously set and securedand the springs P P brought to the proper tension so that the weightswill not move outward untilthe speed is too fast, the governor does notact so long as the motion does not exceed that required; but as soon asit becomes too fast or the belt cast, then the increased motion throwsthe weights It R outward against the resistance of the springs P P andcauses the toggle M to press the friction'plate L against thefriction-surface of the spool, and thereby cause the spool to berotated-and the brake-strap to be wound thereupon, and thus apply thebrake and check the speed of the power; but when the speed-is reducedagain to the proper limit the springs P P overcome and force back theweights R R and the brake falls back from the wheel; or, if the power isso great as to keep up the speed to more than required, the brake isthen held on continuously with sufficient force to just hold the speedas required.

It should be observed that the motion may be varied to suit by movingthe weights outward and inward also, by adjusting the springs, either onthe rods or brake-lever, or by adjustments on all these devices at once,if required.

Having thus fully described my invention, what 1 claim, and desire tosecure by Letters Patent, is as follows:

1. The combination of the endless platform with the frame andcross-partition, constructed substantially as described, so as to workfour horses, two abreast and two in the rear, as set forth. Y

2. The combination of the cross-partitionY with the length partitions,substantially as and for the purpose set forth.

3. In combination with the band-wheel of a horse-power, the weightedrods N N, with the springs PP and toggles MM, for the purpose set forth.

4. The combination of the brake-lever S, the spring for holding thebrake normally ofi' of the band-wheel, the loose friction-spool on thepower-shaft D', connected to the brake-lever by the strap V, and thedevices for revolving the spool by frictional contact and causing it toapply the brake, substantially as described.

5.. The combination, with the brake-lever, its spring, and the strapconnecting said lever to the friction-spool of the governor, of thebrake-slide and its tightening-roller, substantially as described, forthe purpose specified.

P. K. DEDERIOK.

Witnesses: I

0. It. DEDERIOK, R. J. VAN ScHooNHovEN.

